I think is high time the all world start using bitcoin for payment everywhere because bank charges is too much everywhere imagine my bank charges me 5 percent of the money I want to transfer
actually what you are talking si about bank payment but what about if using cash comparing to your option? there is no extra charge and since OP's community and costumers seems to be not that knowledgeable about bitcoin and cryptocurrencies?
am sure they are going to consider having cash when they found out about the congestion that mostly our issues about bitcoin users in which we need to pay fees, i remember one time need to send 20 dollars and the fee charging me 18 dollars lol.